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H thng gim st trng thi hoat ng ca thit b v dch v mng - Nagios

Nagios l mt phn mm m ngun m h tr trong vic gim st hot ng ca cc thit b v cc dch v trong mng. Nagios gip gim st hot ng mt s thit b trung tm trong mng nh Server, Switch, Router,... ng thi kt hp vi b phn pht cnh bo Web, e-mail, qua SMS, Audio pht cnh bo trong trng hp mt thit b ngng hot ng hoc mt dch v mng ngng hot ng. Nagios gim st cc thit b mng thng qua cc giao thc ICMP, SNMP, theo di trng thi hot ng ca cc thit b. ng thi, Nagios cn cho php thit lp c ch gim st hot ng ca cc dch v mng. Cc dch v ph bin c gim st nh: HTTP, FTP, SMTP, POP3, gim st cc host Windows, chng ta c th s dng trc tip thng qua giao thc SNMP hoc s dng phn mm NSClient++ (tch hp SNMP) thu thp thng tin hn t my Windows.

Nagios theo di cc dch v trn Windows qua NSClient Cng tng t nh vy, chng ta c th s dng SNMP gim st cc my Linux qua vic ci t gi NRPE (tch hp SNMP) gim st host v cc dch v trn my Linux.

Nagios gim st cc dch v trn my Unix/Linux qua NRPE Bn cnh gim st cc my ch Windows, Linux, Nagios cn gim st thit b mng khc nh Printer, Router, Switch:

Nagios gim st my in Gim st Router v Switch:

Nagios gim st Router, Switch Nagios c th gim st mt s dch v mng ph bin: HTTP, FTP, SMTP, POP3,

Nagios gim st cc thit b mng Nagios v s mng v hin th trng thi hot ng ca cc host.

Nagios v s trng thi cc host trn mng Vai tr ca Nagios tch hp vo trong Cacti ngoi kh nng gim st chi tit cc host v dch v trong h thng, cn c pht trin gi cnh bo t n e-mail v SMS thng tin h thng SMS gateway.

Nagios gi cnh bo qua e-mail v SMS Cc tham s ly trng thi h thng c s dng lm i s (cc macro) trong vic gi cnh bo: Tham s cho cc dch v: $SERVICESTATE$, $SERVICESTATETYPE$, SERVICEATTEMPT$ Tham s cho host: $HOSTSTATE$, $HOSTSTATETYPE$, $HOSTSTATEATTEMP$